Question

which angle pair represents alternate interior angles in the diagram?

Explanation:

Step1: Recall definition of alternate - interior angles

Alternate - interior angles are non - adjacent angles formed when a transversal intersects two parallel lines. They are between the two parallel lines and on opposite sides of the transversal.

Step2: Identify pairs in the diagram

In the given diagram, when the transversal intersects the two parallel lines, the pairs of alternate - interior angles are $\angle3$ and $\angle6$, and $\angle4$ and $\angle5$.

Answer:

$\angle3$ and $\angle6$, $\angle4$ and $\angle5$